<!doctype html>

<html>

<head>
    <script src="script.js" type="text/javascript">
  	</script>
</head>

<body>
<form onSubmit="buttonClick()">        
    <input type="email" required id="email" value="" />
        <input type="submit" value="Click me!" />
    </form>
</body>

</html>
